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Finding the Fourth Proportional to 266,908,606.08, 400,285,576.80 and 80,155,014.72

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Solution

The fourth proportional to 266,908,606.08, 400,285,576.80 and 80,155,014.72 is: 120,209,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,908,606.08 : 400,285,576.80 = 80,155,014.72 : x
  2. Step 2: Convert to fraction form
    266,908,606.08/400,285,576.80 = 80,155,014.72/x
  3. Step 3: Cross multiply
    266,908,606.08x = 400,285,576.80 × 80,155,014.72
  4. Step 4: Simplify right side
    266,908,606.08x = 32,084,896,300,607,692
  5. Step 5: Solve for x
    x = 32,084,896,300,607,692/266,908,606.08
  6. Step 6: Final answer
    x = 120,209,298.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.